I actually ran water into one of mine ,while engine at idle,trying to wash out some mud/silt. It had no real adverse affect. Im still using that clutch now, on a different kart,a year later..... And a typical kart clutch can run in either direction of rotation. Its the spinning that makes the weights pop out, and they do.t care wich way they are going...... I have HEARD that you can get more life out of a clutch by swapping it from gear out to gear in, routinely..... something about the way it pulls on the bell,lateral forces,or something like that..... ??